Spraying-machine.



D. W. BOXELL. SPRAYING MACHINE.

APPLICATION FILED MAY 1s, 1912.

Patented Apr. 29 1913.

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WTNESSES D. W. BOXELL.

SPBAYING MACHINE.

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W1 NESSS Y I /NI/ENTOR 4 l l; Allarm] UNITED sTATEs PATENT OFFICE.

DAVID W. BOXELL, OF VAN BUREN, INDIANA.

sPRAYING-MACHINE.

Application led May 18, 1912.

spraying apparatus designer particularly for spraying fruit trees, shrubbery, plants, etc., with insecticide or other solutions, and the object is to provide a simple, eti' ctirc and comparatively inexpensive device, that can be ope'rated by hand, or other power for producing a continuous stream or spray.

My invention consists inthe parts and eon'ibination of parts as'will be more fully described and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in side elevation partly in section, of my improved apparatus. Fig. 2 is a view infront elevation ofthe same. Fig. 3 is a view in elevation, partly in section of one of the pistons. Fig. 4 -is a view in elevation partly in section of the extensible spray plpe. Fig. 5 is a View partly in section of one of the pump cylinders, and Fig. 5 is a moditieation thereof. Fig. G is a view in plan, and Fig. 'Tis a view in side elevation of the tank securing hoops or bands coupling. i

1 represents a liquid tank preferably cy lindrical in shape, carried on the axle 2 and truck frame 4. The axle 2 is mounted in thewheels 3, and the frame 4, which may be a single. tongue projecting forwardly from the axle, is rigidly secured to the latter.l

The tank and parts carried thereby, are preferably so mounted on the axle, that the prepomlerance ot' weight will be in front of the axle, so that when the apparatus is at. rest, it may be sustained horizontally and in operative position by the leg 5 hinged to the frame 4, and adapted to rest on the ground, the leg bcingprovidcd with a hook (l, by which it may be secured up against the truck frame 4 while the apparatus is being transported from one posltion to another.

The tank 1 is seated on the bolster 7 rigidly secured to the axle 2, and also rests on the block 8 secured to the frame 4. The

bolster is curved to conform to the contour Specification of Letters Patent.

Patent-cd Apr. 29, 1913.

Serial No. 698,251`.

of the tank I and forms a cradle for same, and is provided at its ends with side extensions or brackets 7, to which the ends of the securing band S are attached. This band 8 is in one continuous piece and passes over and in' Contact with the top of the tank and is provided with threaded ends carrying nuts by which it is secured in place. The other bands 1G and 17 and 1Ga and 17, which will be hereinafter described are made in sections connected by couplings 9 (shown in Figs. 6 and 7), each of which isprovidcd with two parallel grooves 9, open at the top, one extending from a point adjacent one end of the coupling to the other end, and the other starting from adjacentl the last mentioned end and extending to the first mentioned end, thus leaving two heads 9" one at each end, through whichlthe ends of the band or hoop pass, nuts being secured to the ends of the bands, and bearing against the ends of the heads for securing the parts together. By this arrangement, cach section of the hoop pulls against the other, but as the ends are separated and the section of thehoops between the ends are free, I secure a resiliency or flexibility at the coupling, which cannot be secured by the ordinary turnbuckle.

Secured t0 one side of the tank l are the cylinders 10,' each open at one end and located in the same horizontal line, with their open ends toward each other as shown in' Fig. l. The rear end of each cylinder is provided with a head l0 having a central opening' l0", and each head is covered by a cap 10 screwed thereto and provided with a tapped opening for the attachment of a pipe leading to the air tank 25. Secured between the hea'd 1U* of the cylinder and the cap 10C, is the leather disk 10l having a lap valve 1()c integral therewith, the openingr in the disk formed by the valve, being in line with the opening 10b in the head ofthe cylinder.A The valve is somewhat larger than the opening in the head so as to seat thereagainst, and the cap 1()C is provided with a cavity ot a size sutiicient to permit of the free movements of' the valve. Instead of locating the valve'in the cylinder head, the pipe 14 may be tapped di` rectly to the head as shown in Fig. 5, and

Athe valve 10 be located in said pipe at any point intermediate the pump and air tank. Each piston comprises a hollow head` 1l having air ingress openings 11' and egress prcssive stroke.

openings, a leather disk 11"having a flap valve 11 cut therefrom, a cup shaped leather or other suitable flexiblepackin l1, and a flanged cap plate 11. The dis 1l and packing 11 are secured between the head 11 and cap 11.by bolts through the several parts. The va ve 11 closes the openings 11 in the head at each i-oiiipressive stroke of the ston, and opens :it each return stroke, whi e the cup-shaped packing 11d rests on and is supported by the flange of the cap and is constructed to expand and prevent the passage of air back and around the iston during the comlzhere are two of these cylinders and valves-as shown, constructed alike, nndbotli pistons are connected to the operating lever 12 by the pitmen 18. The lever 12 is journaled on the axle 2 intermediate the shoulders 2*, and the pitmen 18 are connected to the piston heads 11 by hinge joints, hence by reciprocating the lever, one piston will move in a direction to compress the air in its cylinder and the other inwardly so as to permit air to enter its cylinder. Each cylinder-10 is connected by a pipe 14 with the air tank 25. After the air has been forced into pipes 14 from the cylinders, it is prevented from returning by the flap valves 10, which will open under a pressure within the cylinders exceedin that of the pressure within tank 25, and w ich will immediately close as soon as the pressure within the cy inders is withdrawn, thus positively preventing the air in the tank 25 from passing back into the cylinders. Each pipe 14 is rovided with a valve 15 by means'of which communication between t e cylinders and tank may be controlled. Tank 25 rests on thevsaddles 15 and 15 which latter are secured on the upper surfaceof liquid tank 1 by the bands 16 and 17. Each of these bands is formed of sections connected by a coupling 9 as previously described and each passes around a cylinder 10 and between bosses 10" integral with the latter. The hand 16 en ages the underside of liquid tank 1, wlii e band 17 passes down under the frame 4. The two bands 16 and 17Il are each formed in sections connected by a coupling 9 as previously described and each passes through a groove in the underside of saddles 15 and 15", and up and over air tank 25. Saddle 15 is rovided at one end with a recess to receive t ie flange 18 of tank and is also provided with a flange 19 which is riveted to the head of tank 25, thus positively locking the latter to the saddle.

20 is a pipe extending from near the top of the air tank 25 to the bottom of liquid tank 1, and continues into and approxi mately throughout the length of the latter and is perforated aav at 21, within the tank so as to discharge the air into the liquid near the bottom of the tank, and thus keep assing v by the liquid tank, of

the same agitated and prevent the settlement of solids. This pipe 20 is also provided at a point adjacent the top of tank 1,

with a branch pipe 21 through which compressed air may be introduced into the tank above the liquid. Compressed air may be admitted either through perforations 21 or through branch pipe 21, or through both, and tius create a pressure sufficient within the tank to force the liquid therein out through discharge pipe 22, the pressure be ing suicient to carry the spray to the top of the trees or other objects being treated. Pipe 20 is provided with a valve 20 for controlling the passage of air to the perforated pipe, and branch 21 is provided with a valve 21h for controlling the flow of air to it from pipe 20.

A hose 22 is attached to the discharge ipe 22 and an extensible nozzle is attached to the opposite end of the hose. This nozzle comprises two telescopng tubes 24--24 connected by a coupling 211h containing a packing 24 which prevents any leakage at the joint. By extending the nozzle it can be projected into dense shrubbery or foliage and reach parts that the spray could not otherwise reach.

Tank 1 is provided with a filling funnel 26 and valve 27, and the air tank is provided with a pressure gage for indicating the pressure within the tank 25.

T e apparatus mounted on a two wheel truck can be readily transported by hand and set up at any point where needed. The air tank can then be filled: to the desired pressure after which the operator can manipulate the nozzle, thus providing a construction that can be conveniently handled and o rated by one person.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit and scope of my invention. Hence I would have it understood that I do not wish to confine myself to the exact construction and arrangement of parts shown and described, but

Having fully described my invention what I claim as new and desire to secure by Letters-Patent is:

1. In a spraying apparatus, the combination with a wheeled truck, a liquid tank mounted on same, and an air tank carried two cylinders located at opposite sides of the axle, a piston for each cylinder, pipes leading from the cylinders to the air tank, and a lever jourfill naled on the axle of the truck and connected lto both piston rods.

l 2. In a spraying apparatus, the combination of a liquid tank, saddles thereon, cylinders secured to the aides of the tank and bands embracing the saddles, tank and cyl- -indeis, an air tank seated on the saddles, a

piston and piston rod for each cylinder, a single lever for actuating both piston rods, -pipes connecting the cylinders with the air tank and a pipe connecting the two tanks.

3. The combination of two superimposed tubular tanks, saddles resting on the lower tank and forming seats for the upper tank, bands passing around the lower tank and over the saddles, and bands passing around the upper tank and u nder the saddles whereby the two tanks are secured together.

4.' In a spraying device, the combination with a' liquid tank, saddles thereon, bands for securing the saddles in place, and an air tank seated on said saddles, one of said 15 in the air tank and a pipe connecting the 20 two tanks.

In testimony whereof, I have signed this specification in the presence of two subscribing Witnesses.

. DAVID W. BOXELL. Witnesses:

HENRY A. LozrER, C. J. OVERMAN. 

